When to Plant Scallions in Fairfield, CA

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of determining when it's the best time to plant scallions is to examine the USDA zone info for Fairfield.


Planting Calendar for Scallions

Frost tolerance for scallions: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Scallions do ok in very little cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant scallions
Possibly ok, but a risky time to plant scallions
Probably not a good time to plant scallions

The earliest that you can plant scallions in Fairfield is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant scallions and expect a good harvest is probably September. Any later than that and your scallions may not have a chance to grow to maturity. Starting your scallions indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Fairfield the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Fairfield and it will vary from year to year. Since half of the time in Fairfield you get surprised by a frost after February 15 be ready to cover your scallions in the event of one of those late frosts.

USDA Zone Info for Fairfield

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low25°F
Highest Expected Low30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Fairfield

You may be interested in your other planting guides for Fairfield.